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380PB-AG vs 380MB-AG 17 of 18 identical Swap Change panels

Canadian Solar CS3U-380PB-AG vs Canadian Solar CS3U-380MB-AG

Canadian Solar CS3U-380PB-AG
CS3U-380PB-AG
380 Wp 18.90 % PERC Bifacial Incomplete
VS
Canadian Solar CS3U-380MB-AG
CS3U-380MB-AG
380 Wp 18.90 % PERC Bifacial Incomplete
The verdict

One difference, none of them an advantage

The largest is cell type: Polycrystalline vs Monocrystalline. 17 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it.

See the one difference
How alike are they
17 of 18 comparable
parameters are identical
identical differs not published
01

What actually differs

1 of 18 parameters
Parameter 380PB-AG 380MB-AG Difference
Cell type Polycrystalline Monocrystalline Polycrystalline vs Monocrystalline
02

What it means on a roof

Thirty years of production
A 1.0% first-year loss then 0.40% a year, assumed for both panels, at 1,200 kWh/kWp a year
Same temp coeff. for both panels (-0.360 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
380PB-AG
12,750 kWh
380MB-AG
12,750 kWh
Lifetime gap
No difference
Output when it is hot
Rated power carried across the range a module actually sees
Scenario 380PB-AG 380MB-AG
Standard test conditions 25 °C 100.0% of rated power 380 W 380 W
Cool, bright day 40 °C 94.6% of rated power 359 W 359 W
Typical summer roof 55 °C 89.2% of rated power 339 W 339 W
Hot roof 70 °C 83.8% of rated power 318 W 318 W
03

Full specification

Parameter 380PB-AG 380MB-AG Difference
Power and efficiency
Rated power 380 Wp 380 Wp Same
Module efficiency 18.90 % 18.90 % Same
Power density 189.4 Wp/m² 189.4 Wp/m² Same
Open-circuit voltage 47.80 V 47.80 V Same
Voltage at max power 40.40 V 40.00 V Effectively the same
Short-circuit current 9.99 A 10.01 A Effectively the same
Current at max power 9.42 A 9.50 A Effectively the same
Temperature
Temperature coefficient -0.360 %/°C -0.360 %/°C Same
Mechanical
Dimensions 2022x992x30 mm 2022x992x30 mm Same
Module area 2.006 m² 2.006 m² Same
Weight 25.9 kg 25.9 kg Same
Weight per kWp 68.2 kg/kWp 68.2 kg/kWp Same
Warranty and degradation
Product warranty 12 yrs 12 yrs Same
Performance warranty 30 yrs 30 yrs Same
Annual degradation - - Neither datasheet publishes this
Technology
Cell technology PERC PERC Same
Cell type Polycrystalline Monocrystalline Polycrystalline vs Monocrystalline
Cell count 144 144 Same
Bifacial Yes Yes Same
04

Against the whole database

14,129 panels
Efficiency
#13,088 vs #13,088
Tied - the same position in the database
Power density
#13,062 vs #13,062
Tied - the same position in the database
Heat behaviour
#12,425 vs #12,425
Tied - the same position in the database
Weight
#13,417 vs #13,417
Tied - the same position in the database
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#12,693 vs #12,693
Tied - the same position in the database
05

More useful comparisons

Open the full database
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Canadian Solar CS3U-380PB-AG vs Canadian Solar CS3U-385PB-AG
One difference: module efficiency
Same series, other bin
Canadian Solar CS3U-380PB-AG vs Canadian Solar CS3U-375PB-AG
One difference: module efficiency
Same series, other bin
Canadian Solar CS3U-380PB-AG vs Canadian Solar CS3U-370PB-AG
3 differences, the largest is module efficiency
Same series, other bin
Canadian Solar CS3U-380PB-AG vs Canadian Solar CS3U-365PB-AG
4 differences, the largest is module efficiency
Same series, other bin
Canadian Solar CS3U-380PB-AG vs Canadian Solar CS3U-360PB-AG
4 differences, the largest is module efficiency
Same series, other bin
Canadian Solar CS3U-380PB-AG vs Canadian Solar CS3U-355PB-AG
6 differences, the largest is module efficiency
06

Written summary

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07

Questions about this pairing

Which panel is better: Canadian Solar CS3U-380PB-AG or Canadian Solar CS3U-380MB-AG?
According to our database: both panels are closely matched on key specs - the decision often comes down to price and local availability. See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Canadian Solar CS3U-380PB-AG and Canadian Solar CS3U-380MB-AG?
Canadian Solar CS3U-380PB-AG has a module efficiency of 18.90%, while Canadian Solar CS3U-380MB-AG is 18.90%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Canadian Solar CS3U-380PB-AG use vs Canadian Solar CS3U-380MB-AG?
Canadian Solar CS3U-380PB-AG uses PERC cells; Canadian Solar CS3U-380MB-AG uses PERC. Modern n-type technologies (TOPCon, HJT, BC) typically deliver higher efficiency and lower degradation compared to older PERC (p-type) cells.
What is the warranty on Canadian Solar CS3U-380PB-AG and Canadian Solar CS3U-380MB-AG?
Canadian Solar CS3U-380PB-AG has a 30 years power warranty; Canadian Solar CS3U-380MB-AG has a 30 years power warranty. The power warranty guarantees a minimum percentage of rated output at the end of the warranty period (typically 80-87%). Product (materials) warranties are usually shorter.
Are Canadian Solar CS3U-380PB-AG and Canadian Solar CS3U-380MB-AG bifacial panels?
Both Canadian Solar CS3U-380PB-AG and Canadian Solar CS3U-380MB-AG are bifacial - they capture reflected light from the ground, which can add 5-15% more annual energy on ground-mount or elevated rooftop installations with a light surface beneath.

Shop prices: See 31 Canadian Solar offers

Every figure here is from the manufacturers' own datasheets - a dash means the value is not published, never an estimate. The thirty-year projection and the temperature scenarios are calculations from those figures, and each states its assumption above.